Question

A) 124:(y*5)=31 б) 38x+15=91

Answer 1

a.

124:(y*5)=31

y*5=124:31

y*5=4

y=4/5

y=0.8

b.

38x+15=91

38x=91-15

38x=76

x=2

Answer 2

a)124:(y*5)=31

y*5=31*124

y*5=3844

y=3844:5

y=768,8

b)38x+15=91

38x=91-15

38x=76

x=76:38

x=2

У меня так получилось

Answer 3

Let's solve the equations step-by-step:

A) 124/(y * 5) = 31

To solve for y, we need to isolate y on one side of the equation. Let's start by getting rid of the fraction by multiplying both sides of the equation by (y * 5):

124 = 31 * (y * 5)

Now, let's simplify the right side of the equation:

124 = 155y

Next, we want to isolate y, so we'll divide both sides of the equation by 155:

y = 124/155

Now, let's simplify the fraction:

y = 0.8

So the solution for y is 0.8.

B) 38x + 15 = 91

To solve for x, we'll isolate x on one side of the equation. Let's start by moving the constant term (15) to the other side of the equation by subtracting 15 from both sides:

38x = 91 - 15

Now, let's simplify the right side of the equation:

38x = 76

Next, we want to isolate x, so we'll divide both sides of the equation by 38:

x = 76/38

Now, let's simplify the fraction:

x = 2

So the solution for x is 2.

Final solutions: A) y = 0.8 B) x = 2